Microsoft is buying a company that lets viewers control video game live streams | The Verge

"Today, Microsoft announced its plans to acquire live streaming service Beam, a Seattle-based company that lets users influence and interact with a video game being streamed by another player. Beam launched in January to compete against well-established game streaming services from Twitch and YouTube. It set itself apart by taking a core concept made popular by streamers — the notion of letting players control a game from afar — and turning into a unique streaming platform."